Combing machine



Nov. G, 1923. 1,473,397

' J. W. NASMITH COMBING MACHINE Original Filed March 30. 1922 Patented f ler. 5, i923.

vars: TAPES tanner rnr E Jenn-w. nasiarrn, on nancnnsrnrv, ENGLAND.

cor/mine MACHINE.

Original application filed March 30, 1922, Serial No. 548,209. Divided and this application filed January 17, 1923. Serial no. 613,203.

To all whom it may concern:

Be it known that 1, JOHN YVILLIAM NA- SMITH, a subject of the King of Great Britain, residing at Manchester, in the county of Lancaster, England, have invented a new and useful Improvement in Combing Machines, of which the following is a specification.

In Nasmith and other combing machines the feeding of the material is usually performed by a feed roller carried in the nipper and resting on the bottom nipper plate or dish or on a second roller and during the forward movement of the nipper the roller is caused to turn and feed the necessary amount of material forward each stroke during the detaching period. During the detaching operation a considerable amount of long fibre, which is not carried forward 2 by the detaching rollers, is drawn out of the nipper and crumpled up behind the top comb and not being held by the nipper when it closes is carried away as waste.

The object of the invention of this appli- 2 cation which is a division of an earlier case Serial Number 548,209, filed March 80, 1922, is to save this unnecessary waste by causing the feed apparatus to draw back a short length of the previously fed material within the nipper as it commences to recede from the detaching rollers and before it closes and this may be done by employing the usual feed roller operated in the following manner, about to be described with reference to the drawings.

Fig. .1 represents an end elevation of part of the nipper of a Nasmith combing machine when it is in its position at the rearmost end of its stroke and Fig.2 shows the same when in its most forward position with the addition of those parts to operate the feed roller as required by this invention.

Referring first to Fig. 2, the combing cylinder is represented by 1, the detaching roller by D and the nipper shaft by W. The connection between this shaft and the nipper cheeks N is as shown. rocked in the usual way and swings the nipper cheeks (one at either end of the nipper) the nipper bridge B and the lower jaw P uninterruptedly to and fro between the position shown in Fig. 1 and that shown in Fig. 2 that is between the dotted radii C and 0 along the dotted arc C The feed Kid The shaft W is roller F, mounted in the usual manner in spring-weighted adjustable bearings, rests on the nipper plate P and has mounted on one end of it a pinion P. The toothed sector S, whose center is at N when in gear with the pinion P is hinged on a stud 38 fixed on a convenient part of the framing of the machine not shown in the drawing.

Pivoted at 39 on the sector S is the link 40, having fixed in its upper end a threaded pin 40 which passes through the block ll swivelling freely in the end of the lever 42, one of which is keyed on the shaft T in each head of the machine. Nuts 43 and 14 serve to regulate the proper engagement of the sector with the pinion. The shaft T is rocked in the following manner. A pin 48 is fixed to the framing of the machine and on it swings a lever 17 having a bowl at the end which rolls on the cam M mounted at the end of the machine on the cylinder shaft. A link 4-6 connects the bowl and lever to the lever e5 keyed on the end of the shaft T One end of a spring 50' is attached to the end of the lever 45 and the other end of the spring is secured to a pin 51 fixed to the frame of the machine so that the pull of the spring always maintains the bowl in contact with the periphery of the cam M.

The cam M is so shaped that when part of the forward stroke of the nipper has taken place, it drops the sector into gear with the pinion and turns the roller forward during the remainder of the forward stroke of the nipper and it keeps the sector in gear with the pinion until the nipper has receded a short distance from the detaching rollers, the effect of which is to turn the roller slightly backwards and to draw back from behind the top comb, (not shown in the drawing to avoid complication) and into the nipper before it closes, a short length of the previously fed material. Ata given moment in the receding motion of the nipper the sector is raised by the cam M at the appropriate instant and the roller ceases to turn backwards and remains stationary on the plate until the sector is again dropped in on the next forward movement of the nip-per.

Although the drawings show and the specification describes the invention applied to a combing machine constructed according. to my United States Patent No.

1,369,532 will be upderstood that SllQh'Q; sectorjso that iijwill eng dgg'thg pinion; and feed ppar xtqs qilallywell beuppliw 'makthe, required feedi andr'ernai ni in gear to other ifilil'ar ty'p'e' of Cdmbihg michirfes. threwith when the nippf 'c'bfmfinds "0 0 lie x I r Cd'e from thedetaghing rollei's'to turn the 15 fe'd' rbl lhbhjbkwfirds fiilfil a desired amount In a combing machine of the .Nas mit h iflth .,pr 1y-' a l as f type, aswinging ipper, a, feedyollgfiitjfiiit; drawn back mtq the mpper and than dls- -,o li h o r ia h o a,, Qt

10 toothed sectorto engage and disengage with Sigha'ture..

Qth said pinion and' means to operate rthe' V V J, 

